Numerical Calculations of Turbulent Swirling FlowSource: Journal of Fluids Engineering:;1975:;volume( 097 ):;issue: 003::page 310DOI: 10.1115/1.3447308Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A numerical technique is developed for solving axisymmetric, incompressible, turbulent swirling flow problems. The Reynolds stresses are expressed in terms of a scalar turbulent viscosity, μt = ρCμ k2 /ε. The turbulent kinetic energy, k, and ε, the turbulent energy dissipation rate, are obtained by solving the corresponding transport equations; Cμ is an empirical constant. Flow calculation results are presented for the coaxial flow configuration shown in Fig. 1. Of particular interest is the presence of flow recirculation due to vortex breakdown. Effects of inner and outer swirl, axial velocity ratio and Reynolds number on the formation, size, and location of the recirculation zone are considered.
keyword(s): Turbulence , Swirling flow , Flow (Dynamics) , Scalars , Viscosity , Kinetic energy , Reynolds number , Stress , Energy dissipation , Vortices AND Equations ,
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| contributor author | I. Kubo | |
| contributor author | F. C. Gouldin | |
| date accessioned | 2017-05-08T22:58:52Z | |
| date available | 2017-05-08T22:58:52Z | |
| date copyright | September, 1975 | |
| date issued | 1975 | |
| identifier issn | 0098-2202 | |
| identifier other | JFEGA4-26873#310_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/87625 | |
| description abstract | A numerical technique is developed for solving axisymmetric, incompressible, turbulent swirling flow problems. The Reynolds stresses are expressed in terms of a scalar turbulent viscosity, μt = ρCμ k2 /ε. The turbulent kinetic energy, k, and ε, the turbulent energy dissipation rate, are obtained by solving the corresponding transport equations; Cμ is an empirical constant. Flow calculation results are presented for the coaxial flow configuration shown in Fig. 1. Of particular interest is the presence of flow recirculation due to vortex breakdown. Effects of inner and outer swirl, axial velocity ratio and Reynolds number on the formation, size, and location of the recirculation zone are considered. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Numerical Calculations of Turbulent Swirling Flow | |
| type | Journal Paper | |
| journal volume | 97 | |
| journal issue | 3 | |
| journal title | Journal of Fluids Engineering | |
| identifier doi | 10.1115/1.3447308 | |
| journal fristpage | 310 | |
| journal lastpage | 315 | |
| identifier eissn | 1528-901X | |
| keywords | Turbulence | |
| keywords | Swirling flow | |
| keywords | Flow (Dynamics) | |
| keywords | Scalars | |
| keywords | Viscosity | |
| keywords | Kinetic energy | |
| keywords | Reynolds number | |
| keywords | Stress | |
| keywords | Energy dissipation | |
| keywords | Vortices AND Equations | |
| tree | Journal of Fluids Engineering:;1975:;volume( 097 ):;issue: 003 | |
| contenttype | Fulltext |